Wringer-roll.



R.' SGHWIBDER. WRINGER ROLL.

APPLICATION FILED 11110.21, 190s.

931,804. Patented Aug. 24, 1909.

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UNITED STATES PATENT OFFICE.

RUDOLF SGHWIEDER, OF DRESDEN, GERMANY.

WRINGER-ROLL.

To all whom it may concern:

Be it known that I, RUDOLF SCHWIEDER, a subject of the Emperor ofGermany, residing at 150 Grossenhainerstrasse, Dresden, N., in theGerman Empire, have invented certain new and useful Improvements in Wringer- Rolls, of which the following is a specification.

My invention relates to improvements in wringer rolls and consists inconstructing said rolls with hollow cores drawn of one piece of metaland reduced at both ends to form journals, longitudinal grooves beingprovided to hold a rubber coating on the core.

In the annexed drawings the invention is illustrated, Figure lrepresenting a cross section of the two rolls of a wringing machine,Fig. 2, a front view of a core without coating, and Fig. 3, an endportion of a roll in longitudinal section.

The roll consists of a drawn, hollow steel core f, the ends g of whichare reduced to form the journals 7L, said journals being closed by plugs't which may be either screwed in orwelded to the journals in anySpecification of Letters Patent.

Application led December 21, 1908.

Patented Aug. 24, 1909.

Serial No. 468,616.

suitable manner. The outer surface of the core is provided with grooves7c for the purpose of effecting a rigid joint between said core and itsrubber coating, Z.

Vvfringing machines constructed with rolls of this description will beconsiderably lighter than those commonly used, and also more efficientowing to the elasticity of the core. thickness simply suiiicient toprotect the washing.

The closing of the ends or journals of the rolls serves to prevent thewater from entering into the interior of the same and so to corrode thesteel core.

I claim A roll for wringing machines comprising a hollow, drawn steelcore having grooves to hold a rubber coating, journals on said coreformed by reducing the ends of the same, and

lugs inserted in said journals to close the latter, substantially as setforth. l

RUDOLF SCI-IWIEDER. Witnesses:

PAUL ARRAS, CLRE SIMON.

The rubber coating may be made of a

